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| bfc108 | 1 | /** |
| Q | 2 | ****************************************************************************** |
| 3 | * @file stm32f0xx_hal_dac_ex.h | |
| 4 | * @author MCD Application Team | |
| 5 | * @brief Header file of DAC HAL Extension module. | |
| 6 | ****************************************************************************** | |
| 7 | * @attention | |
| 8 | * | |
| 9 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> | |
| 10 | * | |
| 11 | * Redistribution and use in source and binary forms, with or without modification, | |
| 12 | * are permitted provided that the following conditions are met: | |
| 13 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 14 | * this list of conditions and the following disclaimer. | |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 16 | * this list of conditions and the following disclaimer in the documentation | |
| 17 | * and/or other materials provided with the distribution. | |
| 18 | * 3. Neither the name of STMicroelectronics nor the names of its contributors | |
| 19 | * may be used to endorse or promote products derived from this software | |
| 20 | * without specific prior written permission. | |
| 21 | * | |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | * | |
| 33 | ****************************************************************************** | |
| 34 | */ | |
| 35 | ||
| 36 | /* Define to prevent recursive inclusion -------------------------------------*/ | |
| 37 | #ifndef __STM32F0xx_HAL_DAC_EX_H | |
| 38 | #define __STM32F0xx_HAL_DAC_EX_H | |
| 39 | ||
| 40 | #ifdef __cplusplus | |
| 41 | extern "C" { | |
| 42 | #endif | |
| 43 | ||
| 44 | /** @addtogroup STM32F0xx_HAL_Driver | |
| 45 | * @{ | |
| 46 | */ | |
| 47 | ||
| 48 | #if defined(STM32F051x8) || defined(STM32F058xx) || \ | |
| 49 | defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ | |
| 50 | defined(STM32F091xC) || defined(STM32F098xx) | |
| 51 | ||
| 52 | /* Includes ------------------------------------------------------------------*/ | |
| 53 | #include "stm32f0xx_hal_def.h" | |
| 54 | ||
| 55 | /** @addtogroup DACEx | |
| 56 | * @{ | |
| 57 | */ | |
| 58 | ||
| 59 | /* Exported types ------------------------------------------------------------*/ | |
| 60 | ||
| 61 | /* Exported constants --------------------------------------------------------*/ | |
| 62 | ||
| 63 | /** @defgroup DACEx_Exported_Constants DACEx Exported Constants | |
| 64 | * @{ | |
| 65 | */ | |
| 66 | ||
| 67 | /** @defgroup DACEx_lfsrunmask_triangleamplitude DACEx lfsrunmask triangleamplitude | |
| 68 | * @{ | |
| 69 | */ | |
| 70 | #define DAC_LFSRUNMASK_BIT0 (0x00000000U) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */ | |
| 71 | #define DAC_LFSRUNMASK_BITS1_0 ((uint32_t)DAC_CR_MAMP1_0) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */ | |
| 72 | #define DAC_LFSRUNMASK_BITS2_0 ((uint32_t)DAC_CR_MAMP1_1) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */ | |
| 73 | #define DAC_LFSRUNMASK_BITS3_0 ((uint32_t)DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0)/*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */ | |
| 74 | #define DAC_LFSRUNMASK_BITS4_0 ((uint32_t)DAC_CR_MAMP1_2) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */ | |
| 75 | #define DAC_LFSRUNMASK_BITS5_0 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_0) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */ | |
| 76 | #define DAC_LFSRUNMASK_BITS6_0 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */ | |
| 77 | #define DAC_LFSRUNMASK_BITS7_0 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */ | |
| 78 | #define DAC_LFSRUNMASK_BITS8_0 ((uint32_t)DAC_CR_MAMP1_3) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */ | |
| 79 | #define DAC_LFSRUNMASK_BITS9_0 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_0) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */ | |
| 80 | #define DAC_LFSRUNMASK_BITS10_0 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */ | |
| 81 | #define DAC_LFSRUNMASK_BITS11_0 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */ | |
| 82 | #define DAC_TRIANGLEAMPLITUDE_1 (0x00000000U) /*!< Select max triangle amplitude of 1 */ | |
| 83 | #define DAC_TRIANGLEAMPLITUDE_3 ((uint32_t)DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 3 */ | |
| 84 | #define DAC_TRIANGLEAMPLITUDE_7 ((uint32_t)DAC_CR_MAMP1_1) /*!< Select max triangle amplitude of 7 */ | |
| 85 | #define DAC_TRIANGLEAMPLITUDE_15 ((uint32_t)DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 15 */ | |
| 86 | #define DAC_TRIANGLEAMPLITUDE_31 ((uint32_t)DAC_CR_MAMP1_2) /*!< Select max triangle amplitude of 31 */ | |
| 87 | #define DAC_TRIANGLEAMPLITUDE_63 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 63 */ | |
| 88 | #define DAC_TRIANGLEAMPLITUDE_127 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1) /*!< Select max triangle amplitude of 127 */ | |
| 89 | #define DAC_TRIANGLEAMPLITUDE_255 ((uint32_t)DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 255 */ | |
| 90 | #define DAC_TRIANGLEAMPLITUDE_511 ((uint32_t)DAC_CR_MAMP1_3) /*!< Select max triangle amplitude of 511 */ | |
| 91 | #define DAC_TRIANGLEAMPLITUDE_1023 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 1023 */ | |
| 92 | #define DAC_TRIANGLEAMPLITUDE_2047 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1) /*!< Select max triangle amplitude of 2047 */ | |
| 93 | #define DAC_TRIANGLEAMPLITUDE_4095 ((uint32_t)DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Select max triangle amplitude of 4095 */ | |
| 94 | ||
| 95 | ||
| 96 | /** | |
| 97 | * @} | |
| 98 | */ | |
| 99 | ||
| 100 | /** | |
| 101 | * @} | |
| 102 | */ | |
| 103 | ||
| 104 | /* Exported macro ------------------------------------------------------------*/ | |
| 105 | ||
| 106 | ||
| 107 | /** @defgroup DACEx_Exported_Macros DACEx Exported Macros | |
| 108 | * @{ | |
| 109 | */ | |
| 110 | ||
| 111 | /** @defgroup DAC_trigger_selection DAC trigger selection | |
| 112 | * @{ | |
| 113 | */ | |
| 114 | #if defined(STM32F051x8) || defined(STM32F058xx) | |
| 115 | ||
| 116 | #define DAC_TRIGGER_NONE (0x00000000U) /*!< Conversion is automatic once the DAC1_DHRxxxx register | |
| 117 | has been loaded, and not by external trigger */ | |
| 118 | #define DAC_TRIGGER_T2_TRGO ((uint32_t)(DAC_CR_TSEL1_2 | DAC_CR_TEN1)) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */ | |
| 119 | #define DAC_TRIGGER_T3_TRGO ((uint32_t)(DAC_CR_TSEL1_0 | DAC_CR_TEN1)) /*!< TIM3 TRGO selected as external conversion trigger for DAC channel */ | |
| 120 | #define DAC_TRIGGER_T6_TRGO ((uint32_t)DAC_CR_TEN1) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */ | |
| 121 | #define DAC_TRIGGER_T15_TRGO ((uint32_t)(DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0 | DAC_CR_TEN1)) /*!< TIM15 TRGO selected as external conversion trigger for DAC channel */ | |
| 122 | #define DAC_TRIGGER_EXT_IT9 ((uint32_t)(DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 | DAC_CR_TEN1)) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */ | |
| 123 | #define DAC_TRIGGER_SOFTWARE ((uint32_t)(DAC_CR_TSEL1 | DAC_CR_TEN1)) /*!< Conversion started by software trigger for DAC channel */ | |
| 124 | ||
| 125 | #endif /* STM32F051x8 || STM32F058xx */ | |
| 126 | ||
| 127 | #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ | |
| 128 | defined(STM32F091xC) || defined(STM32F098xx) | |
| 129 | ||
| 130 | #define DAC_TRIGGER_NONE (0x00000000U) /*!< Conversion is automatic once the DAC1_DHRxxxx register | |
| 131 | has been loaded, and not by external trigger */ | |
| 132 | #define DAC_TRIGGER_T2_TRGO ((uint32_t)(DAC_CR_TSEL1_2 | DAC_CR_TEN1)) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */ | |
| 133 | #define DAC_TRIGGER_T3_TRGO ((uint32_t)(DAC_CR_TSEL1_0 | DAC_CR_TEN1)) /*!< TIM3 TRGO selected as external conversion trigger for DAC channel */ | |
| 134 | #define DAC_TRIGGER_T6_TRGO ((uint32_t)DAC_CR_TEN1) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */ | |
| 135 | #define DAC_TRIGGER_T7_TRGO ((uint32_t)(DAC_CR_TSEL1_1 | DAC_CR_TEN1)) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */ | |
| 136 | #define DAC_TRIGGER_T15_TRGO ((uint32_t)(DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0 | DAC_CR_TEN1)) /*!< TIM15 TRGO selected as external conversion trigger for DAC channel */ | |
| 137 | #define DAC_TRIGGER_EXT_IT9 ((uint32_t)(DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 | DAC_CR_TEN1)) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */ | |
| 138 | #define DAC_TRIGGER_SOFTWARE ((uint32_t)(DAC_CR_TSEL1 | DAC_CR_TEN1)) /*!< Conversion started by software trigger for DAC channel */ | |
| 139 | ||
| 140 | #endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ | |
| 141 | /* STM32F091xC || STM32F098xx */ | |
| 142 | ||
| 143 | /** | |
| 144 | * @} | |
| 145 | */ | |
| 146 | ||
| 147 | /** @defgroup DAC_Channel_selection DAC Channel selection | |
| 148 | * @{ | |
| 149 | */ | |
| 150 | ||
| 151 | #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ | |
| 152 | defined(STM32F091xC) || defined(STM32F098xx) | |
| 153 | ||
| 154 | #define DAC_CHANNEL_1 (0x00000000U) | |
| 155 | #define DAC_CHANNEL_2 (0x00000010U) | |
| 156 | ||
| 157 | #endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ | |
| 158 | /* STM32F091xC || STM32F098xx */ | |
| 159 | ||
| 160 | #if defined(STM32F051x8) || defined(STM32F058xx) | |
| 161 | ||
| 162 | #define DAC_CHANNEL_1 (0x00000000U) | |
| 163 | ||
| 164 | #endif /* STM32F051x8 || STM32F058xx */ | |
| 165 | ||
| 166 | /** | |
| 167 | * @} | |
| 168 | */ | |
| 169 | ||
| 170 | /** | |
| 171 | * @} | |
| 172 | */ | |
| 173 | ||
| 174 | /* Private macro -------------------------------------------------------------*/ | |
| 175 | ||
| 176 | /** @addtogroup DACEx_Private_Macros | |
| 177 | * @{ | |
| 178 | */ | |
| 179 | ||
| 180 | #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ | |
| 181 | defined(STM32F091xC) || defined(STM32F098xx) | |
| 182 | ||
| 183 | #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_TRIGGER_NONE) || \ | |
| 184 | ((TRIGGER) == DAC_TRIGGER_T2_TRGO) || \ | |
| 185 | ((TRIGGER) == DAC_TRIGGER_T3_TRGO) || \ | |
| 186 | ((TRIGGER) == DAC_TRIGGER_T6_TRGO) || \ | |
| 187 | ((TRIGGER) == DAC_TRIGGER_T7_TRGO) || \ | |
| 188 | ((TRIGGER) == DAC_TRIGGER_T15_TRGO) || \ | |
| 189 | ((TRIGGER) == DAC_TRIGGER_EXT_IT9) || \ | |
| 190 | ((TRIGGER) == DAC_TRIGGER_SOFTWARE)) | |
| 191 | ||
| 192 | #endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ | |
| 193 | /* STM32F091xC || STM32F098xx */ | |
| 194 | ||
| 195 | #if defined(STM32F051x8) || defined(STM32F058xx) | |
| 196 | ||
| 197 | #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_TRIGGER_NONE) || \ | |
| 198 | ((TRIGGER) == DAC_TRIGGER_T2_TRGO) || \ | |
| 199 | ((TRIGGER) == DAC_TRIGGER_T3_TRGO) || \ | |
| 200 | ((TRIGGER) == DAC_TRIGGER_T6_TRGO) || \ | |
| 201 | ((TRIGGER) == DAC_TRIGGER_T15_TRGO) || \ | |
| 202 | ((TRIGGER) == DAC_TRIGGER_EXT_IT9) || \ | |
| 203 | ((TRIGGER) == DAC_TRIGGER_SOFTWARE)) | |
| 204 | ||
| 205 | #endif /* STM32F051x8 || STM32F058xx */ | |
| 206 | ||
| 207 | #if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ | |
| 208 | defined(STM32F091xC) || defined(STM32F098xx) | |
| 209 | ||
| 210 | #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_TRIGGER_NONE) || \ | |
| 211 | ((TRIGGER) == DAC_TRIGGER_T2_TRGO) || \ | |
| 212 | ((TRIGGER) == DAC_TRIGGER_T3_TRGO) || \ | |
| 213 | ((TRIGGER) == DAC_TRIGGER_T6_TRGO) || \ | |
| 214 | ((TRIGGER) == DAC_TRIGGER_T7_TRGO) || \ | |
| 215 | ((TRIGGER) == DAC_TRIGGER_T15_TRGO) || \ | |
| 216 | ((TRIGGER) == DAC_TRIGGER_EXT_IT9) || \ | |
| 217 | ((TRIGGER) == DAC_TRIGGER_SOFTWARE)) | |
| 218 | ||
| 219 | #endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ | |
| 220 | /* STM32F091xC || STM32F098xx */ | |
| 221 | ||
| 222 | #define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUNMASK_BIT0) || \ | |
| 223 | ((VALUE) == DAC_LFSRUNMASK_BITS1_0) || \ | |
| 224 | ((VALUE) == DAC_LFSRUNMASK_BITS2_0) || \ | |
| 225 | ((VALUE) == DAC_LFSRUNMASK_BITS3_0) || \ | |
| 226 | ((VALUE) == DAC_LFSRUNMASK_BITS4_0) || \ | |
| 227 | ((VALUE) == DAC_LFSRUNMASK_BITS5_0) || \ | |
| 228 | ((VALUE) == DAC_LFSRUNMASK_BITS6_0) || \ | |
| 229 | ((VALUE) == DAC_LFSRUNMASK_BITS7_0) || \ | |
| 230 | ((VALUE) == DAC_LFSRUNMASK_BITS8_0) || \ | |
| 231 | ((VALUE) == DAC_LFSRUNMASK_BITS9_0) || \ | |
| 232 | ((VALUE) == DAC_LFSRUNMASK_BITS10_0) || \ | |
| 233 | ((VALUE) == DAC_LFSRUNMASK_BITS11_0) || \ | |
| 234 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_1) || \ | |
| 235 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_3) || \ | |
| 236 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_7) || \ | |
| 237 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_15) || \ | |
| 238 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_31) || \ | |
| 239 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_63) || \ | |
| 240 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_127) || \ | |
| 241 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_255) || \ | |
| 242 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_511) || \ | |
| 243 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_1023) || \ | |
| 244 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_2047) || \ | |
| 245 | ((VALUE) == DAC_TRIANGLEAMPLITUDE_4095)) | |
| 246 | ||
| 247 | /** | |
| 248 | * @} | |
| 249 | */ | |
| 250 | ||
| 251 | /* Exported functions --------------------------------------------------------*/ | |
| 252 | ||
| 253 | /** @addtogroup DACEx_Exported_Functions | |
| 254 | * @{ | |
| 255 | */ | |
| 256 | ||
| 257 | /** @addtogroup DACEx_Exported_Functions_Group1 | |
| 258 | * @{ | |
| 259 | */ | |
| 260 | /* IO operation functions *****************************************************/ | |
| 261 | ||
| 262 | HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude); | |
| 263 | HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude); | |
| 264 | HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2); | |
| 265 | ||
| 266 | void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac); | |
| 267 | void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac); | |
| 268 | void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef* hdac); | |
| 269 | void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef* hdac); | |
| 270 | ||
| 271 | /** | |
| 272 | * @} | |
| 273 | */ | |
| 274 | ||
| 275 | /** @addtogroup DACEx_Exported_Functions_Group3 | |
| 276 | * @{ | |
| 277 | */ | |
| 278 | /* Peripheral Control functions ***********************************************/ | |
| 279 | ||
| 280 | uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac); | |
| 281 | ||
| 282 | /** | |
| 283 | * @} | |
| 284 | */ | |
| 285 | ||
| 286 | /** | |
| 287 | * @} | |
| 288 | */ | |
| 289 | ||
| 290 | /** | |
| 291 | * @} | |
| 292 | */ | |
| 293 | ||
| 294 | #endif /* STM32F051x8 || STM32F058xx || */ | |
| 295 | /* STM32F071xB || STM32F072xB || STM32F078xx || */ | |
| 296 | /* STM32F091xC || STM32F098xx */ | |
| 297 | ||
| 298 | /** | |
| 299 | * @} | |
| 300 | */ | |
| 301 | ||
| 302 | #ifdef __cplusplus | |
| 303 | } | |
| 304 | #endif | |
| 305 | ||
| 306 | #endif /*__STM32F0xx_HAL_DAC_EX_H */ | |
| 307 | ||
| 308 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |
